Finding the Fourth Proportional to 78,624.04, 108,500.42 and 42,813.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,624.04 : 108,500.42 = 42,813.96 : x
2. Step 2: Convert to fraction form
   78,624.04/108,500.42 = 42,813.96/x
3. Step 3: Cross multiply
   78,624.04x = 108,500.42 × 42,813.96
4. Step 4: Simplify right side
   78,624.04x = 4,645,332,641.86
5. Step 5: Solve for x
   x = 4,645,332,641.86/78,624.04
6. Step 6: Final answer
   x = 59,082.85